Tall pines, 1000 year-old cedars, and old forests in your local park.

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Recognizing Old Trees

The oldest trees in Ontario often aren’t particularly big or impressive – in fact many of the oldest are surprisingly diminutive – but they do have distinct characteristics that show their age to those who are in the know.

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Old Trees List

The oldest tree in Ontario is a cedar growing on the cliffs of Lion’s Head that germinated in the year 688 AD, it is over 1330 year old. The oldest hardwoood tree in Ontario is a black gum near Niagara that is over 580 years old.

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Algonquin’s Old Forests

Algonquin Park is known for canoeing and moose, but it’s also one of the most important old-growth forest reserves in eastern North America. Large tracts of old-growth remain in the park, and some are unprotected from logging.

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Ontario’s Greenbelt

Ontario’s Greenbelt is the largest in the world. It also protects spectacular and ecologically sensitive areas – including many old-growth forests, the oldest tree in Ontario, rare oak savannas, urban old-growth forests, and world-class hiking trails.

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Guidebooks

Ontario’s old-growth forests is a guidebook with history, ecology, maps and trail descriptions information for 59 old-growth forests throughout the province. A long-anticipated updated new edition will be out autumn 2021.

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Citizen science

Your phone is not merely a useful piece of outdoor gear (GPS / camera etc.), it’s probably the most powerful conservation tool you own. It helps you learn new species, report invasive species or disease-resistant trees, report rare species, and navigate in the woods.